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284 lines
9.5 KiB
284 lines
9.5 KiB
LEMONLDAP::NG INSTALLATION
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Lemonldap::NG is a modular Web-SSO based on Apache::Session modules. It
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simplifies the build of a protected area with a few changes in the application.
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It manages both authentication and authorization and provides headers for
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accounting. So you can have a full AAA protection.
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See README file to known how it works.
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----------------------
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I - QUICK INSTALLATION
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----------------------
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The proposed example use a protected site named test.example.com. Non
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authenticated users are redirected to auth.example.com.
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1.1 - PREREQ
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------------
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1.1.1 - Software
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To use Lemonldap::NG, you have to run a LDAP server and of course an Apache
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server compiled with mod-perl (version 1.3 or 2.x). Generaly, the version of
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Apache proposed with your Linux distribution match, but some distributions used
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an experimental version of mod_perl with Apache2 (mod_perl-1.99) which does
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not work with Lemonldap::NG. With such distributions (like Debian-3.1), you
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have to use Apache-1.3 or to use a mod_perl backport (www.backports.org
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package for Debian works fine).
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1.1.2 - Perl prereq
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Perl modules:
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Apache::Session, Net::LDAP, MIME::Base64, CGI, LWP::UserAgent, Cache::Cache,
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DBI, XML::Simple, SOAP::Lite, HTML::Template, XML::LibXML, XML::LibXSLT
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With Debian:
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apt-get install libapache-session-perl libnet-ldap-perl libcache-cache-perl \
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libdbi-perl perl-modules libwww-perl libcache-cache-perl \
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libxml-simple-perl libhtml-template-perl libsoap-lite-perl \
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libxml-libxml-perl libxml-libxslt-perl
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1.2 - BUILDING
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--------------
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1.2.1 - Complete install
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$ tar xzf lemonldap-ng-*.tar.gz
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$ cd lemonldap-ng-*
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$ make && make test
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$ sudo make install
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By default, all is installed in /usr/local/lemonldap-ng except Perl libraries
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which are installed in a directory included in @INC.
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1.2.2 - Install on Debian
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$ tar xzf lemonldap-ng-*.tar.gz
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$ cd lemonldap-ng-*
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$ debuild
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$ sudo dpkg -i ../*lemonldap-ng*.deb
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Here, all is installed in /var/lib/lemonldap-ng, /etc/lemonldap-ng except Perl
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libraries which are installed in /usr/share/perl5/Lemonldap/NG/
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1.3 - EXAMPLE CONFIGURATION
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---------------------------
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If you have build Debian packages, configuration is done by Debconf. See
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/usr/share/doc/liblemonldap-ng-common/README.Debian to use it.
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After build, you have a new file named example/apache.conf. You just have to
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include this file in Apache configuration:
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# in httpd.conf (with Apache1)
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include /path/to/lemonldap-ng/source/example/apache.conf
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# or in apache2.conf (with Apache2)
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include /path/to/lemonldap-ng/source/example/apache2.conf
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Modify your /etc/hosts file to include:
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127.0.0.1 auth.example.com test1.example.com manager.example.com test2.example.com
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Use a browser to connect to http://manager.example.com/ and specify your LDAP
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settings. If you don't set managerDn and managerPassword, Lemonldap::NG will
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use an anonymous bind to find user dn.
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Next, restart Apache use your prefered browser and try to connect to
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http://test1.example.com/. You'll be redirect to auth.example.com. Try
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to authenticate yourself with a valid account and the protected page will
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appear. You will find other explanations on this page.
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the file /usr/local/lemonldap-ng/etc/storage.conf
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(/etc/lemonldap-ng/storage.conf on Debian systems) can be modified to change
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configuration database.
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-------------------------
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2 - ADVANCED INSTALLATION
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-------------------------
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It is recommended to install the example first then to adapt it.
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2.1 - PREREQ
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2.1.1 - Apache
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To use Lemonldap::NG, you have to run a LDAP server and of course an Apache
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server compiled with mod-perl (version 1.3 or 2.x). Generaly, the version of
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Apache proposed with your Linux distribution match, but some distributions used
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an experimental version of mod_perl with Apache2 (mod_perl-1.99) which does
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not work with Lemonldap::NG. With such distributions (like Debian-3.1), you
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have to use Apache-1.3 or to use a mod_perl backport (www.backports.org
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package for Debian works fine).
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For Apache2, you can use both mpm-worker and mpm-prefork. Mpm-worker works
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faster and Lemonldap::NG use the thread system for best performance. If you
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have to use mpm-prefork (for example if you use PHP), Lemonldap::NG will work
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anyway.
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You can use Lemonldap::NG in an heterogene world: the authentication portal and
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the manager can work in any version of Apache 1.3 or more even if mod_perl is
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not compiled, with ModPerl::Registry or not... Only the handler (site protector)
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need mod_perl. The different handlers can run on different servers with
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different versions of Apache/mod_perl.
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2.1.2 - Perl prereq
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Warning: Handler and Portal parts both need Lemonldap::NG::Manager components
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to access to configuration.
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Manager:
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--------
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Apache::Session, MIME::Base64, CGI, LWP::UserAgent, DBI, XML::Simple,
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SOAP::Lite, XML::LibXML, XML::LibXSLT, Lemonldap::NG::Common
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With Debian:
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apt-get install perl-modules libxml-simple-perl libdbi-perl libwww-perl
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# If you want to use SOAP
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apt-get install libsoap-lite-perl
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Portal:
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-------
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Apache::Session, Net::LDAP, MIME::Base64, CGI, Cache::Cache, DBI, XML::Simple,
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SOAP::Lite, HTML::Template, XML::LibXML, Lemonldap::NG::Common
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With Debian:
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apt-get install libapache-session-perl libnet-ldap-perl perl-modules
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Handler:
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--------
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Apache::Session, MIME::Base64, CGI, LWP::UserAgent, Cache::Cache, DBI,
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XML::Simple, SOAP::Lite, Lemonldap::NG::Common
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With Debian:
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apt-get install libapache-session-perl libwww-perl libcache-cache-perl
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2.2 - SOFTWARE INSTALLATION
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---------------------------
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If you just want to install a handler or a portal or a manager:
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$ tar xzf lemonldap-ng-*.tar.gz
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$ cd lemonldap-ng-*/Lemonldap-NG-(Portal|Handler|Manager)
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$ perl Makefile.PL && make && make test
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$ sudo make install
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else for a complete install:
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$ tar xzf lemonldap-ng-*.tar.gz
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$ cd lemonldap-ng-*
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$ make && make test
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$ sudo make install
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See prereq in §1.1.2
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2.3 - LEMONLDAP::NG INSTALLATION
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--------------------------------
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2.3.1 - Database configuration
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2.3.1.1 - Lemonldap::NG Configuration database
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If you use DBI or another system to share Lemonldap::NG configuration, you have
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to initialize the database. An example is given in example/lmConfig.mysql for
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MySQL.
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2.3.1.2 - Apache::Session database
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The choice of Apache::Session::* module is free. See Apache::Session::Store::*
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or Apache::Session::* to know how to configure the module. For example, if you
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want to use Apache::Session::MySQL, you can create the database like this:
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CREATE DATABASE sessions (
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id char(32),
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a_session text
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);
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2.3.2 - Manager configuration
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Copy example/manager.cgi and personalize it if you want (see
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Lemonldap::NG::Manager). You have to set in particular configStorage. For
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example with MySQL:
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$my $manager = Lemonldap::NG::Manager->new ( {
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dbiChain => "DBI:mysql:database=mybase;host=1.2.3.4",
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dbiUser => "lemonldap-ng",
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dbiPassword => "mypass",
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} );
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Securise Manager access with Apache: Lemonldap::NG does not securise the manager
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itself yet:
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SSLEngine On
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Order Deny, Allow
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Deny from all
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Allow from admin-network/netmask
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AuthType Basic
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...
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After configuration, you can also protect the manager with an Lemonldap::NG
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handler.
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2.3.3 - Configuration edition
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Connect to the manager with your browser start configure your Web-SSO. You have
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to set at least some parameters:
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a) General parameters :
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* Authentication parameters -> portal : URL to access to the authentication
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portal
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* Domain : the cookie domain. All protected VirtualHosts have to be under it
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* LDAP parameters -> LDAP Server
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* LDAP parameters -> LDAP Accout and password : required only if anonymous
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binds are not accepted
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* Session Storage -> Apache::Session module : how to store user sessions.
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You can use all module that
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inherit from Apache::Session
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like Apache::Session::MySQL
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* Session Storage -> Apache::Session Module parameters :
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see Apache::Session::<Choosen module>
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b) User groups :
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Use the "New Group" button to add your first group. On the left, set the
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keyword which will be used later and set on the right the corresponding rule:
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you can use :
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* an LDAP filter (it will be tested with the user uid)
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or
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* a Perl condition enclosed with {}. All variables declared in "General
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parameters -> LDAP attributes" can be used with a "$". For example:
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MyGroup / { $uid eq "foo" or $uid eq "bar" }
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c) Virtual hosts
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You have to create a virtual host for each Apache host (virtual or real)
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protected by Lemonldap::NG even if just a sub-directory is protected. Else,
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user who want to access to the protected area will be rejected with a "500
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Internal Server Error" message and the apache logs will explain the problem.
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Each virtual host has 2 groups of parameters:
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* Headers: the headers added to the apache request. Default :
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Auth-User => $uid
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* Rules: subdivised in 2 categories:
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* default : the default rule
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* personalized rules: association of a Perl regular expression and
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a condition. For example:
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^/restricted.*$ / $groups =~ /\bMyGroup\b/
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-------------
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3 - DEBUGGING
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-------------
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Lemonldap::NG uses simply the Apache log system. So use LogLevel to choose
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information to display.
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